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VW joins Daimler's protest of new A/C refrigerant as EU deadline for compliance passes

The case of Dupont and Honeywell's refrigerant R-1234yf is doing the exact opposite of keeping things cool. The two chemical companies have spent years and hundreds of millions of dollars developing R-1234yf to replace R-134a, the new refrigerant shown to be 99.7-percent kinder to the environment than the one it is meant to succeed. Part of that development has been years of testing by governments, outside safety agencies and automakers to approve the chemical for use in cars. It passed the protocols necessary for the European Union to declare that new and significantly revised cars from 2013 onward needed to use R-1234yf, and mandated that every car as of 2017 must use it.
Enter Daimler AG. The automaker created a head-on collision test with a B-Class at their Sindelfingen test track that would lead to the pressurized refrigerant being sprayed on the engine. The result in 20 out of 20 test was that the refrigerant burst into flames as soon as it hit the hot engine, while Daimler says that R-134a does not catch fire in the same test. Another unexpected result of the R-1234yf test was the release of hydrogen flouride, a chemical far more deadly to humans than hydrogen cyanide, emitted in such amounts that it that turned the windshield white as it began to eat into the glass.
Said a Daimler engineer in a Reuters piece, "It was scarcely believable. The most complicated lab tests conducted using the most sensitive measuring instruments around found nothing and all we do is drive a car around a couple of times, open a tiny hole in the refrigerant line and the next thing you know the car is on fire." So Daimler said it wouldn't use the refrigerant, and it recalled the cars it had already shipped with R-1234yf.

The best Super Bowl car commercials from the last 5 years

If you've been dipping into the Autoblog feed over the past days and weeks, you wouldn't even have to be a sports fan to know the Super Bowl is coming up. Automakers have been teasing their spots for the big game, dropping them days early, fully-formed onto the Internet and otherwise trying to amp up the multi-million-dollar outlays that they've made for air time on the biggest advertising day of the year. And, we're into it. The lead up to the Super Bowl is almost akin to a mini auto show around these parts; with automakers being amongst the most prolific advertisers on these special Sundays. The crop of ads from 2015 looks as strong as ever, but we thought we'd take a quick look back at some of our favorite spots from the last five years. Take a look at our picks – created from a very informal polling of Autoblog editors and presented in no particular order – and then tell us about your recent faves, in Comments. Chrysler, Imported From Detroit Chrysler, Eminem and a lingering pan shot of "The Fist" – it doesn't get much more Motown than 2011's Imported From Detroit. With the weight of our staffers hailing from in and around The D, it's no wonder that our memories still favor this epic Super Bowl commercial (even though the car it was shilling was crap). Imported really set the tone for later Chrysler ads, too, repeated the formula: celebrity endorsement + dramatic copy + dash of jingoism = pulled car-guy heartstrings. Mercedes-Benz, Soul teaser with Kate Upton One of our favorite Super Bowl commercials (and yours, based on the insane number of views you logged) didn't even technically air during the game. Mercedes-Benz teased its eventual spot Soul with 90-seconds worth of Kate Upton threatening to do her best Joy Harmon impression. (Teaser indeed.) It doesn't win points for cleverness, use of music, acting, or any compelling carness, but it proved that Mercedes' advertisers knew how to make a splash in the Internet Age. And, hey, it's still classier than every GoDaddy commercial. Kia, A Dream Car. For Real Life Like the Mercedes video above, the initial draw here is a pretty lady; in this case the always stunning Adriana Lima. But this Kia commercial really delivers the extra effort we expect while scarfing crabby snacks and homemades, too. First of all, Motley Crue. Second, a cowboy on a bucking rhino. Enjoy yet again.

Brabus 800 Roadster is a power-mad aristocrat

If we're being completely honest, we haven't exactly been in love with the aesthetics of the sixth-generation Mercedes-Benz SL-Class. It's mostly a front-end issue, with its glowering eagle-eye headlamps and upright, dinner-plate-sized Three-Pointed Star coming across to us as overwrought. That's particularly troublesome for a roadster whose history has of the most elegant designs of all time in its back catalog. Somehow, the new R231 generation's brash visuals seem more at home on this Brabus 800 Roadster to us.
That's probably because the high-dollar German tuner has turned up the wick on the SL's visuals even further, with carbon fiber bodywork, a more aggressive aero kit, matte hood scoop and complex two-finish wheels. It's all-the-way committed to its brashness, in other words - and justifiably so. Anything with 800 horsepower and 1,047 pound-feet of torque has earned the right to look however it wants, right?
Brabus started with the SL65 and its not-exactly-underpowered 6.0-liter twin-turbo V12, and went to town, fitting their own turbocharger and intercooler system, along with a less-restrictive exhaust system with driver-selectable sound levels and new engine electronics. The result is a 3.7-second 0-62 mph time, an electronically limited top whack of 217 mph... and one seriously compromised toupée.